Torque sensing system, a power control system, a conversion kit with a torque sensing system, and a vehicle with a torque sensing system

A torque sensing system including:

• a first part with an electricity transmission member, and
• a second part rotatable relative to said first part about an axis of rotation, and having:
• a cylindrical body fixedly engageable with a vehicle spindle for receiving torque input from said vehicle spindle and simultaneous rotation about said axis of rotation,
• the body having an outer circumferential surface for engagement with and transmitting said torque input to a one-way clutch,
• four strain gauges being equi-angularly disposed on and around the body, and fixedly engaged with said body for sensing torque applied on said body and outputting torque-related signals representing the magnitude of said torque applied on said body, the strain gauges being electrically connected in series,
• an electricity receiving member for wirelessly receiving electricity transmitted by said electricity transmission member of said first part, and
• a first printed circuit board having a first major surface which is perpendicular to said axis of rotation.